Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
December reveals a small adjustment in temperature, transitioning from an average high of a cool 54°F (12.2°C) in November to a frosty 45.5°F (7.5°C). Galena records a consistent low-temperature of 34.5°F (1.4°C) during December nights.Humidity
The average relative humidity in December is 76%.Rainfall
In Galena, in December, it is raining for 7.3 days, with typically 0.98" (25mm) of accumulated precipitation. In Galena, during the entire year, the rain falls for 108 days and collects up to 10.91" (277mm) of precipitation.Snowfall
Months with snowfall are January through March, November and December. In Galena, during December, snow falls for 1.4 days and regularly aggregates up to 0.24" (6mm) of snow. Throughout the year, there are 9.4 snowfall days, and 1.73" (44mm) of snow is accumulated.Daylight
With an average of 9h and 30min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:04 am and sunset at 4:40 pm. On the last day of December, sunrise is at 7:23 am and sunset at 4:50 pm EST.
Sunshine
The months with the least sunshine are February and December, with an average of 5.1h of sunshine.UV index
January and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: A daily maximum UV index of 2 in December translates into the following instructions:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in December?
What is the average humidity in December in Galena?
How much does it rain in Galena in December?
How many days does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Galena have in December?
When is the sunrise / sunset in December?
What are the months with the least sunshine?
How many hours of sunshine does Galena have in December?
What is the month with the lowest UV index?
How high is the UV index in December in Galena?
Average temperature in December
Galena, MD
- Average high temperature in December: 45.5°F
The warmest month (with the highest average high temperature) is July (84.6°F).
The month with the lowest average high temperature is January (39.2°F).
- Average low temperature in December: 34.5°F
The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (27.9°F).
Average pressure in December
Galena, MD
- Average pressure in December: 30.1"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in December
Galena, MD
- Average wind speed in December: 8.6mph
The windiest month (with the highest average wind speed) is February (9.4mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).
Average humidity in December
Galena, MD
- Average humidity in December: 76%
The month with the highest relative humidity is May (79%).
The months with the lowest relative humidity are January, March, April and November (74%).
Average rainfall in December
Galena, MD
- Average rainfall in December: 0.98"
The wettest month (with the highest rainfall) is August (1.42").
The driest month (with the least rainfall) is January (0.51").
Average rainfall days in December
Galena, MD
- Average rainfall days in December: 7.3 days
The month with the highest number of rainy days is July (12.4 days).
The month with the least rainy days is November (5.6 days).
Average snowfall in December
Galena, MD
- Average snowfall in December: 0.24"
The month with the highest snowfall is January (0.59").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Galena, MD
- Average snowfall days in December: 1.4 days
The month with the highest number of snowfall days is January (3.1 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Galena, MD
- Average daylight in December: 9h and 3min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in December: 5h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The months with the least sunshine are February and December (Average sunshine: 5h and 6min).
Average sunshine days in December
Galena, MD
- Average sunshine days in December: 21.8 days
The month with the most sunshine days is January (22.3 days).
The month with the least sunshine days is July (15.1 days).
Average UV index in December
Galena, MD
- Average UV index in December: 2
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in December
Galena, MD
- Average cloud cover in December: 44
The month with the most cloud cover is March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 29).
Average visibility in December
Galena, MD
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Galena, Maryland, USA
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